How to Fix the Issue if the Installer can’t Remove Previous Version Components

The Installer can’t Remove Previous Version Components “displays while installing or upgrading TrendMicro Worry-Free Business Security (WFBS) Agent 7.0

You receive the following error message if the WFBS 7.0 Security Agent (SA) failed to install or upgrade:

Installation Unsuccessful. The installer could not remove previous version components

Search the Trend Micro Support site for “Error code 302″.


This issue encounters because the installer could not remove some components of the previous SA.

You have two choices to solve the issue:

  1. There is a manual way to remove the old Security Agent using the SA Uninstall Tool.

Using the Uninstall Tool, uninstall the Worry-Free Business Security (WFBS) Agent

To manually remove TrendMicro client/server security agent (CSA) or security agent (SA) on the following scenarios, use the security agent Uninstall Tool:

  • If you can’t install the client using any of the methods explained in the administrator’s guide or manual.
  • If you aren’t able to uninstall the CSA or SA from Control Panel > Add/Remove Programs.
  • In case you want to be sure that all the components of the client are removed from the computer.

The Uninstall Tool may support the following WFBS agent versions:

WFBS 9.0



To use the Uninstall Tool:

  1. Download the security agent Uninstall Tool.

Note: The process on how to run the Security Agent Uninstall tool can also be found in Preferences > Management Tools > Clients of the WFBS management console.

  1. By doing one of the following, log on to Windows as administrator or you may use any account with administrator privileges:

For Windows Vista or above with enabled User Account Control (UAC), right-click Uninstall.bat and choose Run as Administrator.

Click Yes if the UAC dialog box shows up, otherwise, double-click Uninstall.bat.

For Windows XP/2003, double-click Uninstall.bat.

  1. Wait untill the following message to appear:

Press any key to continue…

Do you want to reboot now? (Y/N)

If you do not want to reboot right now, type “N[Enter]”. A few of the drivers will not be removed until reboot.

If you want to reboot right now, type “Y[Enter]”, the computer will take 30 seconds to start again after the countdown ends..

Note: All the components can’t be removed until you don’t reboot your system. Restart the computer to complete the Security Agent uninstallation.

  1. Or reinstall the Security Agent. For the procedure,

There are different installation methods for the Security Agent or Client/Server Security Agent of Worry-Free Business Security (WFBS)

The multiple methods to install TrendMicro Client/Server Security Agent (CSA) or Security Agent (SA) of WFBS.

To install the CSA/SA:

  • Using Client Packager

The Client Packager tool allows you to install the CSA/SA via CD-ROM or similar media. This software utility compresses the setup or update files into one self-extracting MSI package, which can’t be copied to a CD or USB flash drive. This method lets you to install the CSA/SA via GPO on the systems with restricted connections or no connection at all to the Security Server.

The TMVS finds installed antivirus applications, searches for unprotected systems on the network, and installs the CSA/SA on these machines. TMVS pings the ports that antivirus software normally use to know if computers need protection or not. This way allows you to install the CSA/SA on multiple computers like remote installation.

  • Using Remote Install

You can remotely install the CSA/SA on multiple systems at the same time. This is possible to do on computers running the following (except where the Security Server is already installed):

Windows 2000

Windows XP Professional

Windows 7

Windows Vista

Windows Server 2003

Windows Server 2008

  • Via internal web page

By going to the internal web page, you can install the CSA on your computer.

  • Using Email Notification in WFBS

Using this procedure you can send an email message with a link to the installer.\

  • Using Login Script Setup, install the CSA

When unprotected computers log on to the domain, the Login Script Setup automatically installs the CSA. It is set on a server which is a primary domain controller using an account with administrator rights. It works only on those computers which are listed in the Windows Active Directory of the server.

  • AutoPcc install

To install using AutoPcc, run the \\<WFBS server>\Ofcscan\Autopcc.exe file.

Note: To check the installation logs and identify components that cannot be removed, you can go to the C:\Windows\Temp\WFBS_Debug folder,.